Antiskid device



Oct. 7, 1930.

LE ROY A. DUNSTER 1,777,964

ANTISKID DEVICE Original Filed May 8, 1929 2 Shuts-Sheet l [.flliunster NNNNNN on Oct. 7, 1930.

LE ROY A DUNSTER 1,777,954

ANTISKID DEVICE Original Filed May 8, 1929 2 Shoots-Sheet 2 fly- /6 2 l i am II h 11/1 liunster INVENTOR ATTORNEY i 45. ing one eof the ground engaging shoes. Referring to the drawings in detail, the

' letter A ,indicates thespokes of a vehicle wheel, B the felly, Cithe telly band, D the Patented Oct. 7,-19 30.

n nor ALBERT DUNSTER, or H mmmw YORK AnrIsKInnE'vicE 1 Applicationifile d May a, 1929, Serial n'bf, 36133312, renewed August 2'0, 930'. L i

r This invention relates to anti-skid devices for motor vehicle wheels, and its generalobwheel, with the it is in; use.

toprovide ananti-skid device that is movableand springpressed for that purpose,

7 but is substantially noiseless in its action.

A' still further object of the invention'is to provide an anti-skid device that is simple l in construction, inexpensive to manufacture,

easy "to apply, and is efficient in operation and 'SGI'VlCB.

- This invention also consists in certain oth-- er features of construction and in the combination and arrangement oi the several parts,

'30 lustrated 1n the accompanying drawings and [specifically pointed out in the appended claim. I e I In descrlblng my invention 1n Clef/2111, reference will be had to the accompanying drawings wherein like characters denote like throughout the sev--j (Jr-corresponding parts I eral v1ews,and in which:

7 Figure l is a side view of my anti-skid device applied to a vehicle wheel.

Tmately on line of Figure 1. Figure 3 is a sectlonal yiewtaken approxi- I mately on line 3-3 of Figure 1;

f Figure 4 is a fragmentary view illustrattire rim, and E the tire, e e I The device whichfforms the'subject matto be hereinafter fully described, il-: 7 p

' endssecured to the intermediatering 3 and;

':their inner end'sin the form oflugs 10 which *i have portions disposed between the telly band ,to'the vehicle wheel through the medium of skid devices that arecarried by the'tires.

ter of the present invention includes an *inner ring 1, an outer ring 2, "and an intern1eject is to providea device of this character that has no connection with the wheel tire,

' V 5 other than for holding the tire; rim on its diate ring' 3. These rings, are and are concentrically arranged with respectto each other 'as best shown in Figure"2.- 'Therings '55 result that damage to the n tireby the device will be eliminated but the latter will bee'liective to prevent skidding, as 7 well as to-provide sure traction for the wheel: 10in snow, ice,mud,, sandand the like, when 2 i and 3 are connected together 7 through the in'strumentality of strips 4, while the rings land 3 are connected together byist'rips 5, the latter being arrangedin pairsf'and in :converglngrelation with'respectto each oth '100 V p v er as best shown in Figure 1," a Another object of the inventionis to pro- 'vide an anti-skid device that is adjustable I with respect tothe ground, whereby it can e yl5 -be moved to a ground engaging posit on,

' {or to a position out ofuse.

T y A still furtheriob'ect of the invention is,

A"andthe felly Byan d thisfirst'inentio'ned means includes brackets 6 having'inclinedlfcfi p ortions that have their outer endssecured to, the sinner ring 1 while their inner ends -have formed or otherwise secured thereto 'one part Q7 of/1a clamping member, while cooperating with the part 7 is a part 8175 The-parts 7 and '8 receive the spokes as best shown in "Figure 2 andinclude' ears for the purpose: of accommodating bolts that pass :therethrough. and which are provided with thumb nuts whereby the clamping members":

can be fixedly secured to the spokes 'aswill be apparent.

' Themeansjcarried by the folly as above set forthyinclude arms 9 thathave theirouter C and the tire rim .D and apertured portions for the purpose of accommodating the lug bolts 11; By securingthe anti-skid device themeans just described, it is-apparent that rthe anti-skidf'device has no connection with "thetire, with the resultit cannot-damage the FigureQ 1s a sectional view takenapproxi-w same as generally happens in the usual anti Disposed between the rings% and 3 are'colwlars 12 which receive plunger rods 13 for slidable movement therethrough. The latter .7 have threaded inner ends to accommodate vthumbknits 1a. The outerends of the plunger rods 13, have: secured thereto elongated shoes 15 which provide the ground engaging means" for my anti-skid devica and these shoes are angle shape inlcrossrsection and V disposed between the respective'fianges of the shoes are fins 16 that have rou'ndedouter co'r- 11ers as best shown in Figures 2 and 3. f The plunger rods 13 pass through all ofthe rings and are mounted for slidable movement therein. Surrounding the plunger "rodsbetween the rings 3 and 1 and being secured 15 thereto by pins '17 are spring retainers 18 10 ing the inner convolutions of coil springs 19 that also surround vthe -plunger-rods-13 and. have their outer convolutions rece ved by;

1 and 3 respectivelyasbest shown in Figure 2.

provided for the plunger rods and is disposed between the thumb nuts 14 and the inner ring 1 whereby the plunger rods in their,m0ve cement will be substantially noiseless. v I The plunger'rods are guided in their move-* .ment' by pins 22 that are formed with, the 7 shoes and extend inwardly. therefrom in converging relation with respect to. each other as t v best shown in Figure 1. The pins-'22 are I 5- guided by-sl'eeves23 that are secured between the rings 2 and 3-inany well known manner.

. Fromthe above .descriptionl'and disclosure 7 provided an antiskid device that is extremely .v The ground engaging shoes are capable of be I ing 'adjustedthrough the medium of the: thumb nuts ldthat are threaded to the plungv .35 canbe disposed to ground engaging position" Q or a position out of use, and also to variouspositions between those. mentioned so that the action ofthe shoes with respect to'the ground r, 7 can be varied in acco'rdance withthe'circumstances'and ones desires F g f f- ;Itis. thought-from the foregoing description'that the advantages and novel features 1 of my inventionwill be readilyapparent.

changes in the construction andin the combi [nation and. arrangement of the several parts, .7 provided that such changes fall within the scope of the appended claim. 1 -What'I'claimisz r 50 Ananti-skiddevice having means for securing the same toa vehicle wheel for are-lg rangement laterally thereof and comprising concentrically imounted rings, collar between twolof said rings, sleeves betweenthe lastmentionedrings', spring pressed plunger rods HIOUI llZQd'ifOI slidable m vement through the collars and ringsrground;engagingshoes 1 secured tothe outer ends of said plunger rods,

pinsseci lred to said shoes .and mounted for slidable' movement: through *saidsleeves, means for adjusting said shoes with respect having flanged ends for the purpose oif receivv I s rin retainers 20 which en a ethe frin' 's b b b 5 A rubber bumper in' the form of a ring 21'is V .of the drawingsr'it will be obviousthat I have V 1 30 efficient to perform its intended functions. i i

er rods .18. By thiszconstruction, thev shoes v :I desire it to be'understood that I may make t tothe gro-undlan'd means for-securing said"v v 1 'ringswithrespect.to a vehiolewheel. V V. r [In testimonywhereof I aifix my signature. vQLEROY ALBERT DUNSTER. 

